Aci Worldwide (ACIW) Stock Buybacks: 15.2% of Shares Retired Since 2015

Name: Aci Worldwide (ACIW) shares outstanding since 1999, split adjusted
Creator: Buyback Radar
License: https://creativecommons.org/licenses/by/4.0/

Shares outstanding, 1999 to todaysplit adjusted, from SEC filings

1999, 97,869,3932026-08-03, 100,955,241

A share bought in 2001

1.0× more of Aci Worldwide today, without buying another share. It was one of 105,814,566 shares then. It is one of 100,955,241 now.

Every filing we read27 fiscal years, split adjusted

Fiscal year	Date	Shares outstanding	Filing
1999	1999-12-17	97,869,393	10-K	cover page
2000	2000-12-01	95,010,258	10-K	cover page
2001	2001-12-19	105,814,566	10-K	cover page
2002	2002-12-31	106,367,919	10-K	cover page
2003	2003-12-10	109,613,025	10-K	cover page
2004	2004-11-30	113,522,730	10-K	cover page
2005	2005-11-30	111,758,649	10-K	cover page
2006	2007-05-08	111,483,495	10-K	cover page
2007	2008-01-25	107,027,652	10-K	cover page
2008	2009-02-27	104,794,296	10-K	cover page
2009	2010-02-25	102,109,872	10-K	cover page
2010	2011-02-16	99,817,647	10-K
2011	2012-02-17	117,526,683	10-K
2012	2013-02-25	118,363,359	10-K
2013	2014-02-24	115,354,971	10-K
2014	2015-02-23	115,879,610	10-K
2015	2016-02-22	119,073,873	10-K
2016	2017-02-24	117,305,774	10-K
2017	2018-02-23	115,904,949	10-K
2018	2019-02-25	116,143,338	10-K
2019	2020-02-24	116,130,399	10-K
2020	2021-02-22	117,142,557	10-K
2021	2022-02-22	115,063,657	10-K
2022	2023-02-27	108,111,525	10-K
2023	2024-02-27	106,412,716	10-K
2024	2025-02-24	105,336,028	10-K
2025	2026-02-23	101,719,981	10-K

Source: all 10-K filings of Aci Worldwide on EDGAR. Download this series as CSV. Licence CC BY 4.0, credit Buyback Radar.

What the buybacks cost, since fiscal 2016cash flow statement against share count

$888Mspent on buybacks

18Mfewer shares outstanding

$30average price paid per share bought back

3.8%buyback yield, last fiscal year’s spend on today’s market value

Cash spent comes from the cash flow statement. Shares outstanding fell by less than the company bought, because part of every buyback only replaces shares handed to employees. Today’s price is $52.80.

Aci Worldwide buybacks, answered

Is Aci Worldwide buying back its stock?

Yes. Aci Worldwide has 2.1% fewer shares outstanding than twelve months ago, 100,955,241 as of August 3, 2026. Over five years the share count is down 14.1%.

How many shares has Aci Worldwide bought back?

Net of every new share it issued, Aci Worldwide has 18.1 million fewer shares than at its 2015 peak. That is 15.2% of the company. Since fiscal 2016 alone it bought back about 29.9 million shares, while the count fell by 16.4 million. The difference went to employees and other new shares.

How many shares does Aci Worldwide have outstanding?

100,955,241 shares, as of August 3, 2026, from the cover page of its latest 10-Q. At the 2015 peak it had 119,073,873.

What do Aci Worldwide's buybacks mean for a shareholder?

Each share is a bigger slice of the company. Someone who held Aci Worldwide stock in 2015 owns 1.2 times as much of the business today without buying another share. Whether that was a good use of cash depends on the price paid.

How does Aci Worldwide compare with other cannibal stocks?

Aci Worldwide ranks No. 238 of 251 companies on Buyback Radar by share of the company retired since its peak. Close to it on the list: Amphenol (15.3%), Green Brick Partners (15.3%), Cbre Group (14.7%), Generac (14.6%).

Every answer is computed from Aci Worldwide's own SEC filings and rebuilt every Monday. Latest count: 10-Q on EDGAR.

Insider buying, last 12 months

Benitez Juan IIDirector2026-03-03, 2,400 shares at $41.90 $101K total

SANCHEZ ADALIO TDirector2026-03-02, 3,000 shares at $40.98 $123K total

The story

The numbers say what happened. The story says whether it can continue. We cover companies like Aci Worldwide in depth on Cannibal Stocks.

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Aci Worldwide